Chuck.



j @Im 860,781. PATBNTBD JULY 23, 19o?.

P. ZULINKE & s BURGBT.

UHU

APPLICATION IIILE NB 12, 1906.

ATTORNEYS UNITE earns ...entrasse essioa.

PETER ZULINKE, OF ELIZABETH, AND SYGMUNT BURGE'. OF JERSEY CITY, NEW JERSEY.

CHUCK.

Speccation of. Letters Patent.

.Patented July 23, 1907.

application lsd Junel, 1906. Serial No. 321,350.

the Emperor of Austria-Hungary, and a resident of Elizabeth, in the county of Union and State of New Jersey,

and SYGMUNT BUnGE'r, a subject of the Emperor of Austa-Hungary, and a resident of Jersey City, in the county of Hudson and State of New Jersey, have`invented certain new and useful Improvements in Chucks, of which the following is a specification.

Our invention relates`to chucks and has for its object to provide means for adjusting the jaws individually andvfor quickly setting all of said jaws simultaneously.

Other objects of our invention will appear from the annexed. description and the features of novelty will be pointed out in the appended claims.

Reference is to be had to the accompanying drawings in which Figure l is a sectional view of our improved clutch on the line 1-1 of Fig. 2; Fig. 2 is a sectional view thereof on line 2-2 of Fig. 1; Fig. 3 is a partial cross .section substantially on line X-X of 2, drawn upon an enlarged scale; and Fig. 4 is a section on line .4-4ofrig. 2.

or are secured to the jaw-bearing members 7. These Y rollers 5 are adapted to travel in the spiral slot 4 of the disk 3. The jaw-bearing members 7 are adapted to slide in the rear part of the gnideways l*L and are pro vided with semi-circular screw-threaded portions 8, adapted for engagement with the screw-threaded spindles 9 provided with angular sockets 10. These` spindles 9 are provided with reduced portions 11 ar- 'ranged to receive the coupling members or blocks 12,

which are secured in position on each of the jaws 2. Spiral springs 13 serve to maintain the blocks l2 in position in engagement with the reduced portions 11. Thus when it is desired to adjust the jaws individually or relatively to each other a suitabletool is inserted in the sockets 10 and the spindles 9 are rotated. This rel'sults in the spindles 9 working up or down on the screw-v threaded portions 8 o the members 7, the jaws 2 being carried along with said spindles through the medium of the blocks l2 and their connection with said jaws. By turning the screw 12 which engages the block 12, the latter may be withdrawn, against the tension of the spring 13, into a recess 2, clear of the spindle 9, so as to allow the jaw to be removed quickly by sliding it out- 'ward.

The following mechanism is provided for the purpose of setting all oi' the jaws simultaneously:

The disk 3 is beveled at 14 which beveled portion `is surrounded by a wedge ring 15 having a corresponding beveled inner surface. The ring l5 is further provided with worm teeth 16 which are arranged to mesh with a worm screw 17 provided with reduced portions 18 jour naled in bushings 19 which are suitably secured in position on the chuck body 1 by means of screws 20. The worm screw 17 is also provided at each end with angular portions 21 Qhaving angular sockets 22. The wedge ring 15 is prevented from moving laterally with respect to the chuck body l by means of a ring 23 vsecured to said chuck body by means oi screws 24. This ring 23 allows the ring 15 to be rotated for .the purposeI to be more ullydescribed hereinafter, the said ring 15 being provided with' a shoulder 25 which engages the ring 23. The disk 3 is screwthreaded at 26 to receive the screw-threaded clamping ring 27 which is adapted to be screwed up against the ring 15.

By screwing the clamping ring 27 up tightly against the wedge ring 15 the latter is forced up on the bevel 14 ofthe disk 3, and the disk 3, the ring l5 and the ring 27 are securely locked together. It a proper key is now inserted into one of the sockets 22, or over one oi the angular portions 21, and turned, the worm screw 17 will rotate the ring 15 and with it the disk 3 (and ring 27), thus through the medium of the spiral slot 4 and the rollers 5, bringing the jaws nearer to, or farther away from, each other according to the direction in which the worm screw 17 is rotated. With this arrangement it is possible to adjust the jaws very accurately. A

.rapid adjustment of the jaws is obtained in the following manner: The clamping ring 27 is provided with a radially sliding bolt 2S to which is secured a pin 29 which passes through a slot 29el in the ring 27 a flat bow spring 30 is secured to this pin 29 and engages the ring 27 to each side of said pin within a groove 27. The disk 3 is provided with a socket 31 into which the bolt 28 is adapted to snap when the member 27 is unsere-Wed slightly. This unscrewing o the ring 27 releases the ring 15 from the disk 3, and the said ring 27 being locked to the disk 3 through the medium of the bolt 28, it is possible to turn the body 1, with the Wedge ring 15, by hand relatively to the disk 3 and thus secure a rapid adjustment of the jaws. During this turning of the body 1 and ring 15 by hand, the disk 3 is stationary and is not affected. When it is desired to release the bolt 28 rom Y the socket, the spring 3() is pressed outward at the point 4where it engages the pin 29, which action releases the bolt 28 from the socket 3l as illustrated in Figs. 2 and 4, and vallows the ring 27 to be screwed up against the ring 15, so that the jaws are held in their adjusted position.

With our invention it is thus possible to quickly set Q eeogiei all of the jaws simultaneously and also to adjust the jaws individually and to lock said jaws in their adi usted position.

Various modifications may be made without departing from the spirit oi our invention as defined in the claims,

We Claim:

1. In a chuck, the combination with :i body having slideways, of jaws movable in said slideways, a rotatable disk having n spiral for adjusting the jaws simultaneously and made with a beveled outer surfaceia wedge ring engaging the said beveled surface. a clamping ring screwing on said rotatable disk lo connect the wedge ring therewith or relense it therefrom. n worm gearing interposed between the body und the wedge ring,

2. In u chuck, the combination of a body having slideways. jaw-hearing members movable in said slideways and provided with seini-circular screw-threaded sockets, screw spindles engaging said sockets, jaws4 and relcasable coupling devices for normally causing said jaws to move length wise with the spindles` .'5 In a chuck, the combination of a body having slideways, jaws movable in said slideways, a rotatable disk having a beveled surface and provided with a spiral for ad justing the jaws simultaneously, a wedge ring,r engaging the beveled surface of the disk. worin gearing interposed between said wedge disk :ind the body, a clamping ring screwing on said disk to connect said wedge ring with the disk or release it therefrom, and means for locking,r the clamping ring to the said disk in the releasing position of the clamping ring.

4. In a. chuck, the combination of a body having slideways, jaws movable in said slideways, a. rotatable disk having a beveled surface und provided with a, spiral for adjustinetlie jaws simultaneously, a Wedge ring engaging the beveled :surface of the disk, worm gearing interposed be tween smid wedge disk and the body, :i clamping ring screwingI on said disk to connect said wedge ring with the disk or release it therefrom, und a springpressed pin carried by the claing'iing ring and adapted for locking engagement with aid disk, A I

5. In a chuck, the combination oi' a body having a slideA way. :i Jaw-beuriilg member, movable in said slideway, :ind havingT a screw-threaded socket. o. screw spindle located in said socket. u jow and a movable und releasable springpressed coupling member which normally compels the jaw to follow the lengthwise movement of the Spindle.

(i. In-a chuck, the combination of a body having slidewziy. a buv-bearing," member. movable in said slideway and each provided with a screw-threaded socket, a screw spin dic located within each socket. Jews, coupling blocks carried by said .in :ind movable transversely into and out of engagement with euch of said spindles, and means for normally holding nach ol' said coupling blocks in engagement with eziuh screw spindle.

7. In a chuck. the combination of a body having slideways4 beni-ing; members movable in said slideways and eliclbhzwing a serewfthremled socket, a screw spindle iocnlcd in each ol' said sockets and provided with a reduced portion. jaws, und spring-pressed coupling blocks carried by said jaws und movable into and out of engagement with V thi` reduced poi-ren of euch oi' Suid spindles.

PETER ZULINKE. SYGMUNT BURGE'I.'

\,Yii.ne. lses t JoinY "Lo'lims EUGENE Enma. 

